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Finding the Fourth Proportional to 570,566.12, 855,932.61 and 171,238.45

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Solution

The fourth proportional to 570,566.12, 855,932.61 and 171,238.45 is: 256,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,566.12 : 855,932.61 = 171,238.45 : x
  2. Step 2: Convert to fraction form
    570,566.12/855,932.61 = 171,238.45/x
  3. Step 3: Cross multiply
    570,566.12x = 855,932.61 × 171,238.45
  4. Step 4: Simplify right side
    570,566.12x = 146,568,573,440.86
  5. Step 5: Solve for x
    x = 146,568,573,440.86/570,566.12
  6. Step 6: Final answer
    x = 256,882.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.